Lubricating-pump.



E. L. RUSSELL.

LUBRIGATING PUMP.

APPLICATION I-ILED 11110.15, 1911.

1,03%55 Patented Aug. 27, 1912.

2 SHEETS-SHEET 1.

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APPLIOATION FILED DIS-0.15, 1911.

Patented Aug. 27, 1912.

23EEETS-SHEET 2.

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in al EDWIN L. RUSSELL, F CLEVELAND, OHIO.

LUBRIcATING-PUMP.

Specification of Letters Patent.

Patented Aug. 2'7; 1912.

.llppliestion filed December 15, 1911. Serial No; 665346.

To all "Li/310m may concern:

l lo it known that l, Enwm L. RUssnLL, a citizen oi the United States, residing at Cleveland, in the county of Ouyahoga-und State of Ghio, have invented a new and useful Lubricating-Pump, of which the following. is a specification.

The object of my inventionis to produce a very simple form of pump by means of which lubricating oil may be pumped to various hearings, the structure being. es-' peciully designed for use in automobile engincs and o-lisuch form that the pump chamber may he formed directly in a casing forming a portion of the engine casing or frame whereby stuiliug looses may be eliminated.

The accompanying drawings illustrate my invention.

Figure .l is an elevation of an engine equipped with my improved pump,the pump and piston parts being shown in vertical section; Fig.2 is avertical sectional detail on a larger scale, approximately full size; Fig. 2. section on line 33 of Fig. 2, with-- the pump shaft ren'ioved; Fig. l 9. frugnientery vertical section of the main stem of the pump and the associated pump head or dislr; and Fig.3 a section cn'line 55 of Fig. 2. v

in the drawings. indicates the lower casing member of the crank shalt casing 11 and this member is provided with an extension or boss 12 in which is formed a vertical axially tapered sent 13, which, at its upper end. communicates with the'interior of the heiiriug'l which is provided for the support of a. vulvedrivinp' shut 15. The seat 13 is upwardly tapered and at its lower end communicates with a pocket or pump chamher 16 (which in the term illustrated is cy lindricsllfroni which leads 2. delivery pas 17 end into which leads u supply pas- 18 which is termed within the body vol 3; 10 and communicates etits lower with an oil reservoir 19. The ump cipher 1G is freely accessible at its ower end but is closed 3} a readily reinouuble cap in which is iri'ned :3. spring pocket 22 i uncnt i. l 13. The shanlrlor my pump tits at its lower end in ct and upon this shank is slid- HilLllY hlOUYYUMl a substantially circular disk or pump he'nd 2-1. This pump head is provided with diametrically opposite redial end h slots 25 in seen of which isinounlied ray.

dial-1y; inoyuble piston or plunger 26 having up axial dimension equal to the. axial. dimen- SlO-D. of the head 24. The two plungers 26 are normally urged outwardly by means of a.

spring 27 which extends through a passage 23 vformed diametrically through shaft- 23.

Immediately abovehead2 l the shaft 23 is provided with an upwardly tapered bearing portion-.29 which fits in pocket 13 and above .6

this tapered portion is a tip 31.wl1ich carries a. radially projecting pin 32 which in turn may be freely engaged by a pair of driving fingers 33 pro ecting downwardly IEI'ODLH. nut 3-1 threaded upon the lower end ofshaftlS, the arrangement being suchth'at no special care needbe'employedin heving the seat 13 in exact alinement with shaft 15.

The tapered portion 29 of shaft 23 is and 36 and therefore in order to lubricate the tapered seat 13 and the hearing 29, .I extend upwardly fro1n..tl1e upper end' of pocket 36 an oil passage 37 the upper end of which is projected to the face of the tapered hearing 29 at about midway of its length.

As the sent 13 wears, the bearing portion 29. will be projected upwardly into the seat and it is therefore necessary that the pump head 24 be conncctedto the shaft 23 in such manner as to permitthis relative movement.

F or that purpose, I project downwardly from the larger lower endof the bearing portion 29., a pair of pins 39 which are pnrale lel with the itXlS O-f. the shaft and project into corresponding openings -11 formed in head 24 In operation, it will be apparent that rotation of head 24 inn direction indicated by the arrow in Fig. 3 will cause a flow of oil from passage 18 to passage- 17. I am cfthe tapered seat 13 and tapered bearing 29., with the automatic axially-adjustable connection between the" shaft and the pump head so that on oil-tight connection may be maintained between the-shaft{and itsbearing while at the some time making possible no the sxiel filling of the pump chamber-with, the pump heed without need"v for provlsiou of adjustment of those parts. By forming the pump chamber and its bearings directly in a casingv member of the engine or crank case, it will be seen that I am able to Wholly avoid thenecessity of packed shaft bearings for the pump.

having a. tapered ortion journaled in said seat, a pump head aving driving connection therew1t-h mounted in the pump chamber -and carried by said shaft and hav ng an automatically axially-adjustable .diiving connection :With said shaft, and means for holding the tapered portion of said shaft into the tapered seat.

In Witness whereof, I have hereunto set my hand and sealat- Indianapolis,Indiana,

copies '0! this patent inay be obtained for five cents each, by addressing the Commissioner of Patents, 1 Washington, D. C. 

